Comment Spacing, Indentation, and Capitalization (#1084)

* Comment Spacing, Indentation, and Capitalization

* Comment Grammar and Spacing

Makes grammar in comments better and more consistent
Adds space before comment and centers word in `Write-Host` commands

* More Grammar and Formatting

* Add some comments

* Populate PlaceHolder comments in functions

Files I found that has issues:
Get-WinUtilRegistry.ps1
Install-WinUtilWinget.ps1
Invoke-WinUtilDarkMode.ps1
Remove-WinUtilAPPX.ps1
Test-WinUtilPackageManager.ps1
Update-WinUtilProgramWinget.ps1

Invoke-WPFUpdatessecurity.ps1

* Tweak a few more comments

* Tweak another write-host statement

* Undo Catch statement adjustment

It's outside of the scope of this pull request

functions/private/Get-WinUtilRegistry.ps1

@@ -7,7 +7,7 @@ function Get-WinUtilRegistry {
     .EXAMPLE
         Get-WinUtilRegistry -Name "PublishUserActivities" -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\System" -Type "DWord" -Value "0"
 
-    #>
+    #>    
     param (
         $Name,
         $Path,
@@ -15,7 +15,7 @@ function Get-WinUtilRegistry {
         $Value
     )
 
-    Try{
+    Try{      
         $syscheckvalue = Get-ItemPropertyValue -Path $Path -Value $Value # Return Value
 
     }